Formation of Cyclohexylidene and Quinoline Products from 2-Methylpyran Derivatives
Abstract
6-Amino-4-aryl-5-cyano-2-methylpyran-3-carboxylates undergo cleavage and recombination when reacted with malononitrile, the products being 1-amino-3-aryl-2,6,6-tricyanocyclohexylidene-5-methylidenecarboxylates and related compounds.